[llvm-branch-commits] [clang] [llvm] [mlir] [RFC][AMDGPU] Add EXECSYNC address space (PR #195613)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

> Clang will generate an AS cast to flat, followed by a flat GEP, followed by a cast to AS15. This is not a bug. This is just how clang lowers things.

Clang lowering it the wrong way, introducing an unnecessary cast, is a bug 

https://github.com/llvm/llvm-project/pull/195613